APA (7e ed.) Bronvermelding

Não informado. (1999). Design Methods. Design Methods Institute.

Chicago (17e ed.) Bronvermelding

Não informado. Design Methods. San Luis Obispo, Calif: Design Methods Institute, 1999.

MLA (8e ed.) Bronvermelding

Não informado. Design Methods. Design Methods Institute, 1999.

Let op: Deze citaties zijn niet altijd 100% accuraat.